Shenzhen Institutes of Advanced Technology

Chinese Academy of Sciences

Feiyan Cai

Fei Li

Hairong Zheng

Long Meng

Fei Yan

Yongchuan Li

Hui Zhou

Chen Wang

Yang Xiao

Lili Niu

Weibao Qiu

Chengxiang Zhang

Di Xu

Liufeng Geng

Chaowei Xu

Xiangxiang Xia

Manzhu Ke

A microfluidic system, including: a container, an ultrasound transmitter assembly, and a phononic crystal plate. The container is configured to accommodate a solution containing microparticles. The ultrasound transmitter assembly is configured to transmit ultrasonic waves to the phononic crystal plate, where the ultrasonic waves have a frequency which is the same as a resonance frequency of the phononic crystal plate. The phononic crystal plate is placed in the solution, and configured to generate a local acoustic field on a surface of the phononic crystal plate under excitation of the ultrasonic waves, and induce an acoustic microstreaming vortex to generate an acoustic streaming shear stress on the microparticles. The phononic crystal plate defines therein cavities, the respective cavities are arranged periodically in the phononic crystal plate, and all the respective cavities are filled with gas.

Microfluidic system and operation method thereof

A planar lens () and a manufacturing method for a planar lens () relate to the technical field of lenses, the planar lens () being a focusing lens and comprising an acoustic soft material tangible structure () and a cover layer (), the acoustic soft material tangible structure () comprises a plurality of combination lenses () located in the same plane, each combination lens () comprises a circular part () and a plurality of concentric annular parts () which are continuously arranged around the circular part (), the thicknesses of each two adjacent annular parts () in each combination lens () are different, and the thickness of each annular part () is related to the focal length of the respective combination lens (); and the cover layer () covers the outer surface of the acoustic soft material tangible structure () to form the planar lens ().

Planar lens and manufacturing method for planar lens

Disclosed is a microfluidic system based on an artificially structured acoustic field, comprising a microcavity used to accommodate a solution containing particles and a ultrasonic emission device used to emit ultrasound, and further comprising a phononic crystal plate placed in the microcavity. The phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles. Also disclosed is a method of controlling microfluid particles based on an artificially structured acoustic field. In the particular embodiments, since a microcavity, an ultrasonic emission device and a phononic crystal plate are comprised, the ultrasonic emission device is used to emit ultrasound, and the phononic crystal plate has an artificial cycle structure, and is used to modulate the acoustic field so as to control the particles.

Microfluidic system and method of controlling particles based on artificially structured acoustic field

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Shenzhen, China

Feiyan Cai